Add splitInterpolation

Author: fisker

packages/angular-html-parser/src/index.ts

@@ -109,6 +109,7 @@ export {
 } from "../../compiler/src/parse_util.ts";
 export { getHtmlTagDefinition } from "../../compiler/src/ml_parser/html_tags.ts";
 export { SUPPORTED_BLOCKS as SUPPORTED_ANGULAR_BLOCKS } from "../../compiler/src/ml_parser/lexer.ts";
+export { splitInterpolation } from "./utilities.ts";
 
 // Types
 export type { ParseTreeResult } from "../../compiler/src/ml_parser/parser.ts";

packages/angular-html-parser/src/utilities.ts

@@ -0,0 +1,16 @@
+import { getFakeSpan } from "../../compiler/test/expression_parser/utils/span.ts";
+import { Lexer } from "../../compiler/src/expression_parser/lexer.ts";
+import {
+  Parser,
+  SplitInterpolation,
+} from "../../compiler/src/expression_parser/parser.ts";
+
+function createParser(supportsDirectPipeReferences = false) {
+  return new Parser(new Lexer(), supportsDirectPipeReferences);
+}
+
+function splitInterpolation(text: string): SplitInterpolation | null {
+  return createParser().splitInterpolation(text, getFakeSpan(), [], null);
+}
+
+export { splitInterpolation };

packages/angular-html-parser/test/utilties_spec.ts

@@ -0,0 +1,30 @@
+import { splitInterpolation } from "../src/index.ts";
+
+test("splitInterpolation", () => {
+  expect(splitInterpolation('before {{  "}}"  }}')).toMatchInlineSnapshot(`
+    SplitInterpolation {
+      "expressions": [
+        {
+          "end": 19,
+          "start": 7,
+          "text": "  "}}"  ",
+        },
+      ],
+      "offsets": [
+        9,
+      ],
+      "strings": [
+        {
+          "end": 7,
+          "start": 0,
+          "text": "before ",
+        },
+        {
+          "end": 19,
+          "start": 19,
+          "text": "",
+        },
+      ],
+    }
+  `);
+});